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Finding the Fourth Proportional to 14,681,037.20, 21,978,010.20 and 10,911,232.40

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Solution

The fourth proportional to 14,681,037.20, 21,978,010.20 and 10,911,232.40 is: 16,334,484.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,681,037.20 : 21,978,010.20 = 10,911,232.40 : x
  2. Step 2: Convert to fraction form
    14,681,037.20/21,978,010.20 = 10,911,232.40/x
  3. Step 3: Cross multiply
    14,681,037.20x = 21,978,010.20 × 10,911,232.40
  4. Step 4: Simplify right side
    14,681,037.20x = 239,807,176,981,770.47
  5. Step 5: Solve for x
    x = 239,807,176,981,770.47/14,681,037.20
  6. Step 6: Final answer
    x = 16,334,484.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.